Railway-switch.



No. 656,69I. Pa tentod Aug. 28, I900.

T. COPEMAN.

RAILWAY SWITCH.

. (Application filed June 9, 1900.) '(No Model.)

2 Sheets-Sheet I.

A n n n n lzizqggy No. 656,69l. Patented Aug. 28, I900.

' T. COPEMAN.

RAILWAY swncn.

(Apialication filed lune 9,-1900.

2 Sheets-Sheet 2.

(NolodaL) [ml/692E)":

A [Tangy TIIORN COPEMAN, OF EDGAR MILLS, CANADA, ASSIGNOR OF ONE-THIRDTO JOSEPH WAITE, OF SAME PLACE.

' RAILWAY-SWITCH.

SPECIFICATION forming part of Letters Patent No. 656,691, dated. August28, 1900.

Application filed June 9, 1900. ScrialNo.19,695. (No model.)

To aZZ whom it may concern: on the inner side, the two forming togetherBe it known that I, THORN COPEMAN, a a vertical guideway fortheswitch-point rail. citizen of Canada, residing at Edgar Mills, in Thehousing-plate E is formed on the inthe county of Essex and Province ofOntario, side with a rib f, which is adapted to bear 5 Canada, haveinvented certain new and useagainst the adjacent face of the cam portionful Improvements in Railway Switches, of of the roller, as will be morefully hereinafter which the following is a specification. described. Theends of the housing-plate are This invention relates tothat kind ofrailsecured by bolts 9 g to the stationary rails, way-switch inwhichthere are verticallythe bolts g passing through elongated slots 6o IOmovable switch-point rails, one being dein the housing to permitexpansion to take pressed while the other is at the level of the placewithout binding the switch-point rail rails; and the invention consistsin the peand its supporting cam-roller. culiar and novel means foroperating such The-cam-rollers are supported upon ties, swit'clrpointrails by supporting the same suitable bearing-plateshbeingused,and each:5 upon cam-rollers in the manner more fully cam-roller is provided witha crank-arm F, hereinafter described, and shown in the acconnected inany suitable manner with the companying drawings, inwhichswitch-operating rod G.

Figure 1 is a plan of the switch. Fig. 2 is In practice the parts beingconstructed and a crosssection thereof on line a; a, Fig. 1. arranged asshown and described theyare 7o 20 Fig. 3 is a cross-section on line 1 y,Fig; 1. intended to operate as follows: In the posi- Fig. 4 is a plan ofone of the switch-points tion of the switch as shown in Fig. 2 the withthe housing-plate shown in dotted outswitch-point rails are supported bythe camlines. Fig. 5 is an elevation of Fig. 4:. Fig. rollers at therelative heights required to 6 is adetached perspective view of one ofthe keep the main track open. If the switch is 25 switch-points. thrownin the opposite direction, the cam- Arepresents the stationary rails ofthe main rollers will be revolved one-quarter of a revtrack. olution,thereby causing a reversal of the po- 13 represents the stationary railsof the sidsitions of the switch-point rails which coning. nect theswitch with the main track. o 0 O are the two movable switch-point railsIn revolving the cam-rollers it will be seen in line with the innerrails. that the ribsf of the housing act as a fulcrum D D are camrollers, one beneath each for the cam-rollers, and thereby give anadswitch-point rail and supporting the same in vantage in theapplication of power in throwposition upon the ties. Each cam-roller ising the switch.

5 substantially coextensive with the switch- My construction has thegreat advantage point rail and is composed of a roller portion that thecam rollers provide a continuous or and a cam portion Z2. Eachcam-roller bears solid support and bearing for the switch-point with itsroller portion against the under side rails and also it is not liable toget out of orof the switch-point rail and is held in posider or becomeinoperative by reason of snow 0 4.0 tion thereon by straps c or in anyother suitor ice or by being maliciously tampered with. able way whichpermits the roller to be re- What I claim as my invention, and desirevolved. Preferably the under side of the to secure by Letters Patent,isswitch-point rail is made to fit the top of the i 1. In arailway-switch, the combination roller and to providea wide bearing thewhole with the stationary rails of a main line and g5 5 length. Thecam-roller is placed at a slight siding, of vertically-movableswitch-point angle to the switch-point rail, as shown in rails held invertical guide-bearings in line Fig. 4, and a rib d is formed on theinside at with the inner rails at theirjunction with the the pointed endof the switch point rail. outer rails, cam rollers interposed betweenEach cam-roller is confined in position at its the same and the ties inalternate positions I00 50 outer side bya suitable filler-block e,secured to support said switch-point rails, one at the to the outerrail, and by a housing-plate E level of the stationary rails and onebelow,

rails held in vertical guide-bearings in line with the inner rails attheir junction with the outer rails, cam-rollers interposed between thesame and the ties and forming continuous bearing or seat for theswitch-point rails, one beneath one switch-point rail in position tosupport the same at the level of the stationary rails and the other inalternate position beneath the other switch-point rail and supportingthe same at a lower level, each cam-roller having a circular ,rollerportion and each switch-point rail having a continuous seat formed onthe under side for said roller portion on which the cam roller isadapted to be rotated, both cam -rollers, being connected forsimultaneous operation by the switch-rod.

3. In arailway-switch, the combination with the stationary rails of amain line and siding, of the vertically-movable switch-point rails 0,held in vertical guide-bearings in line with the inner rails, one at thelevel of the stationary rails and one at a lower level, the cam-rollersD eccentrically journaled to the under side of said switch-point railsand supporting the same directly upon the ties,in alternate positions ofsaid cam-rollers, the arms F on the cam-rollers connected to theswitch-operating rod, and the housing-plates E having the ribs f adaptedto operate as a fulcrum for the cam-rollers, all substantially asdescribed.

4. In a railwayswitch, the combination with the stationary rails A, B,of the vertically-movable switch-point rails G, the camrollers D uponwhich said switch point rails are mounted free to rotate saidcam-rollersto support the switch-point rails upon the ties in'alternate positionsOf said cam-rollers, one level with the stationary rails and the otherbelow said level, the arms F on said cam-rollers, the switch-rod towhich they are connected, and the housings E provided with the ribs f,the aforesaid cam-rollers composed of the roller portions a and camportions 12 forming between them a longitudinal groove into which saidribs'f project to operate as a fulcrum in rotating the cam-rollers.

In testimony whereof I affix my signature in presence of two witnesses.

, THORN COPEMAN. Witnesses:

FRED A. SUTHERLAND, EDMUND I. SoULLY.

